3.73's and highway speeds

Discussion in 'Fox 5.0 Mustang Tech' started by ninety15.0, Sep 6, 2005.

  1. I made it for 2 pages,,LOL,,I'll read the rest tomorrow!! I have a 1995 Jeep with the 4 cyl. At 70mph its at 3000 rpm,I usaully do 75-80 so its above 3000rpm..It red lines at 5000rpm.The motor has 259,000 miles on it and it runs like a champ,doesnt leak a drop of oil,it gets a quart low at about 3000 miles(rite around oil change time)
    What Michael is trying to say when you are cruising on a highway at 3000 rpm you motor isnt using much energy to maintain that speed,so its not really hurting anything.Your worried about friction,well thats where synthetics come in:nice: Heck regular Dino oil is fine,as long as you change it regularly and your level isnt low!!